IEEE Trans Biomed Circuits Syst. 2009 Dec;3(6):379-87. doi: 10.1109/TBCAS.2009.2031628.
We present the NeuralWISP, a wireless neural interface operating from far-field radio-frequency RF energy. The NeuralWISP is compatible with commercial RF identification readers and operates at a range up to 1 m. It includes a custom low-noise, low-power amplifier integrated circuit for processing the neural signal and an analog spike detection circuit for reducing digital computational requirements and communications bandwidth. Our system monitors the neural signal and periodically transmits the spike density in a user-programmable time window. The entire system draws an average 20 muA from the harvested 1.8-V supply.
我们提出了一种基于无线射频（RF）能量的远场无线神经接口（NeuralWISP）。NeuralWISP 与商用 RF 识别读取器兼容，工作范围可达 1 米。它包括一个定制的低噪声、低功耗放大器集成电路，用于处理神经信号，以及一个模拟尖峰检测电路，用于降低数字计算要求和通信带宽。我们的系统监测神经信号，并在用户可编程的时间窗口中周期性地传输尖峰密度。整个系统从采集到的 1.8V 电源中平均消耗 20μA。
